Keywords

PID (P, PI, PID) control performance, Liquid level control unit, Data acquisition and computer interface, Bench-scale process control laboratory, Control parameter storage and graphical output

Abstract

A system was developed to allow undergraduate engineering students the capability of simulating various types of control modes in a laboratory environment. The use of digital control and common industrail components such as transducers, recorders, and valves was implemented.

Modification to an existing bench scale process control system is outlined and demonstrated. A computer program was written which interfaces with the hardware and data acquisition software allowing the user many options to study control processes under a variety of conditions. A wide range of parameters can be selected. System parameters can be saved on disk or printed directly. Data are also sent to a graphics program.

Three control modes, Proportional, Proportional - Integral and Proportional - Integral - Derivative, were tested. Porportional mode had a damped voltage, but the level was offset from the reference level. Adding integral control eliminated offset, but the voltage was less damped. The inclusion of derivative decreased the amount of overshoot and undershoot.

Notes

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Graduation Date

1988

Semester

Summer

Advisor

Klee, Harold I.

Degree

Master of Science (M.S.)

College

College of Engineering

Department

Computer Engineering

Format

PDF

Pages

132 pages

Language

English

Rights

Public Domain

Length of Campus-only Access

None

Access Status

Masters Thesis (Open Access)

Location

Orlando (Main) Campus

Identifier

DP0023900

Subjects

Dissertations; Academic -- Engineering; Engineering -- Dissertations; Academic; Digital control systems--Computer programs; Feedback control systems--Computer programs; Automatic control--Study and teaching (Higher); Automatic control--Experiments; Liquid level indicators--Computer-assisted instruction

Accessibility Status

Searchable text

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